On Sun, 24 May 1998 12:46:23 EDT PHXSYS <PHXSYS@AOL.COM> writes:

>1) For 9600 baud and bit timing should be 104us. The best I have been
>able to
>do in my 16F84 program is 116us between bits, due to the way I have
>implemented the code. This  is consistent for both the serout and
>serin
>routines. Can I communicate effectively with the BS2 with the slight
>offset in
>timing? The BS2 will utilize its standard serin/out commands.

You can have a slight difference, but 10% is too much.  About 5% is the
limit.  Usually a PIC crystal can be selected so the baud rate works out
exactly with your software approach.

>2) What kind of limitations do I have for baud rate in this
>application? Can I
>run at 19,200 or even higher?

There is no problem running high baud rates over a short TTL-level link.
It will work as fast as your software can go.

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